Mold, molding jig and molding method

Abstract

A mold ( 10 ) according to the present invention is a mold for molding a surface of a laminate ( 60 ) when curing the laminate ( 60 ) obtained by laminating prepreg ( 62 ). The mold ( 10 ) has a planar plate shape and elastically deforms from the planar plate shape into a shape corresponding to a shape of the laminate ( 60 ), thereby being capable of coming tight into contact with the laminate ( 60 ). Thereby, a mold which is easy to handle can be provided.

The invention claimed is: 
     
       1. A molding jig comprising:
 a mold used for molding a surface of a laminate when curing the laminate obtained by laminating prepreg; and 
 a retaining mechanism that brings the mold into tight contact with the laminate which allows the mold to be covered with a bag film in a state in which the mold is in tight contact with the laminate, 
 the mold having a planar plate shape, and elastically deforming from the planar shape into a shape corresponding to a shape of the laminate so as to come into tight contact with the laminate. 
 
     
     
       2. The molding jig according to  claim 1 , wherein the mold is made of a fiber-reinforced plastic. 
     
     
       3. The molding jig according to  claim 2 , wherein the mold has a thickness of 1.5 mm±0.5 mm. 
     
     
       4. The molding jig according to  claim 1 , wherein the retaining mechanism includes
 a retaining belt which is stretched and fastenable over an outside surface of the mold, and 
 a plurality of spacers interposed between the mold and the retaining belt. 
 
     
     
       5. The molding jig according to  claim 4 , wherein the plurality of spacers includes spacers which differ in height,
 the laminate has a cylindrical shape, and when the retaining belt is stretched in an axial direction of the laminate, each spacer included in the plurality of spacers is arranged in an ascending order of height toward a center of the retaining belt. 
 
     
     
       6. The molding jig according to  claim 1 , wherein the prepreg is laminated on a core die serving as a magnetic body, and
 the retaining mechanism includes a plurality of retaining magnets that generates magnetism and is attachable to the core die via the mold and the laminate. 
 
     
     
       7. The molding jig according to  claim 6 , wherein the retaining magnet is configured to generate strong magnetism only from one surface.